import re

from django.contrib.auth import backends
from django.contrib.auth.backends import ModelBackend

from users.models import User


def jwt_response_payload_handler(token,user=None,request=None):
    """
    自定义jwt认证成功返回数据

    """
    return {
        'token':token,
        'username':user.username,
        'user_id':user.id
    }


def get_user_by_account(username):
    try:
        if re.match(r'1[3-9]\d{9}',username):
            user=User.objects.get(mobile=username)
        else:
            user=User.objects.get(username=username)
    except User.DoesNotExist:
        user=None
    return user


class UsernameMobileAuthBackend(ModelBackend):
    """
    自定义用户名或手机号认证
    """
    def authenticate(self, request, username=None, password=None, **kwargs):
        user=get_user_by_account(username)
        if user is not None and user.check_password(password):
            return user
